question

voelkerfel avatar image
voelkerfel asked

Phoenix Inverter 12/1200 with LifePo4-Smart 12.8/100 battery

Hi all,

according to the manual, the Phoenix 12/1200 inverter requires a battery capacity of at least 150 Ah.

Why is that? Would it also work wth a lower capacity battery, e.g., a 100 Ah LifePo4-Smart battery?

Thanks for your help!

Phoenix Inverter
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1 Answer
klim8skeptic avatar image
klim8skeptic answered ·

Why is that? Would it also work wth a lower capacity battery, e.g., a 100 Ah LifePo4-Smart battery?

2 reasons. Voltage sag at load. A peak currents at load.

Voltage sag will trigger the inverter low volt cut out.

High currents will reduce run time and damage batteries.

Bigger can handle higher currents with less voltage sag.


Now if your 100a LifepO4 battery can handle 100a+ continuous discharge all good.

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